add isl_aff_mod_val

[platform/upstream/isl.git] / isl_id.c

diff --git a/isl_id.c b/isl_id.c
index ef03330..410218d 100644 (file)
--- a/isl_id.c
+++ b/isl_id.c
@@ -1,7 +1,7 @@
 /*
  * Copyright 2008-2009 Katholieke Universiteit Leuven
  *
- * Use of this software is governed by the GNU LGPLv2.1 license
+ * Use of this software is governed by the MIT license
  *
  * Written by Sven Verdoolaege, K.U.Leuven, Departement
  * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
@@ -11,6 +11,11 @@
 #include <isl_ctx_private.h>
 #include <isl_id_private.h>
 
+#undef BASE
+#define BASE id
+
+#include <isl_list_templ.c>
+
 /* A special, static isl_id to use as domains (and ranges)
  * of sets and parameters domains.
  * The user should never get a hold on this isl_id.
@@ -44,7 +49,7 @@ static __isl_give isl_id *id_alloc(isl_ctx *ctx, const char *name, void *user)
 
        if (name && !copy)
                return NULL;
-       id = isl_alloc_type(ctx, struct isl_id);
+       id = isl_calloc_type(ctx, struct isl_id);
        if (!id)
                goto error;
 
@@ -66,18 +71,29 @@ error:
        return NULL;
 }
 
-static int isl_id_has_name(const void *entry, const void *val)
+struct isl_name_and_user {
+       const char *name;
+       void *user;
+};
+
+static int isl_id_has_name_and_user(const void *entry, const void *val)
 {
        isl_id *id = (isl_id *)entry;
-       const char *s = (const char *)val;
+       struct isl_name_and_user *nu = (struct isl_name_and_user *) val;
 
-       return !strcmp(id->name, s);
+       if (id->user != nu->user)
+               return 0;
+       if (!id->name && !nu->name)
+               return 1;
+
+       return !strcmp(id->name, nu->name);
 }
 
 __isl_give isl_id *isl_id_alloc(isl_ctx *ctx, const char *name, void *user)
 {
        struct isl_hash_table_entry *entry;
        uint32_t id_hash;
+       struct isl_name_and_user nu = { name, user };
 
        id_hash = isl_hash_init();
        if (name)
@@ -85,7 +101,7 @@ __isl_give isl_id *isl_id_alloc(isl_ctx *ctx, const char *name, void *user)
        else
                id_hash = isl_hash_builtin(id_hash, user);
        entry = isl_hash_table_find(ctx, &ctx->id_table, id_hash,
-                                       isl_id_has_name, name, 1);
+                                       isl_id_has_name_and_user, &nu, 1);
        if (!entry)
                return NULL;
        if (entry->data)
@@ -124,6 +140,19 @@ uint32_t isl_hash_id(uint32_t hash, __isl_keep isl_id *id)
        return hash;
 }
 
+/* Replace the free_user callback by "free_user".
+ */
+__isl_give isl_id *isl_id_set_free_user(__isl_take isl_id *id,
+       __isl_give void (*free_user)(void *user))
+{
+       if (!id)
+               return NULL;
+
+       id->free_user = free_user;
+
+       return id;
+}
+
 /* If the id has a negative refcount, then it is a static isl_id
  * and should not be freed.
  */
@@ -148,6 +177,9 @@ void *isl_id_free(__isl_take isl_id *id)
        else
                isl_hash_table_remove(id->ctx, &id->ctx->id_table, entry);
 
+       if (id->free_user)
+               id->free_user(id->user);
+
        free((char *)id->name);
        isl_ctx_deref(id->ctx);
        free(id);